User Documentation

ManualsBrandsWeidmueller ManualsAutomation & SoftwareENERGY ANALYSER 750-24

General

Safety

12 11

Device short description

Install the device in a weather-protected front

panel on switching cabinets.

Cut-out size:

138

+0.8

x 138

+0.8

Ensure!

Adequate ventilation

• The device is installed

vertically!

• Adherence to clearances

from neighbouring

components!

Fig. Mounting position,

rear view

Establish Ethernet connection to the PC

The three most common Ethernet connections

between PC and device are described here:

Ethernet

(cross patch cable)

The PC and the device require a static IP address.

Switch/

router

Patch cable

Patch cable Patch cable

DHCP

server

Switch/

router

CAUTION!

Damage to property due to

incorrect network settings

Incorrect network settings can cause faults in

the IT network!

Obtain information from your network

administrator about the correct Ethernet

network settings for your device.

More information on device conﬁ guration

and communication is provided as of step 13.

Voltage measurement

The device has 4 voltage measurement inputs

and is suitable for various connection variants.

CAUTION!

Risk of injuries or damage to

the device

Failure to observe the connection conditions

for the voltage measurement inputs can cause

injuries to you or damage to the device.

Therefore, note the following:

• Do not connect the voltage measurement

inputs

- to DC voltage.

- Do not use for voltage measurement in

SELV circuits (safe extra low voltage).

• Voltages that exceed the allowed network

rated voltages be connected via a voltage

transformer.

• The voltage measurement inputs are to

be equipped with a suitable, labelled fuse

and isolation device located in the vicinity.

Network systems

Network systems and maximum rated voltages (DIN EN 61010-1/A1):

Three-phase four-conductor

systems

with earthed neutral conductor

Three-phase four-conductor

systems with non-earthed neutral

conductor (IT networks)

Three-phase four-conductor

systems, not earthed

Three-phase four-conductor

systems with earthed phase

IEC U

L-N

/ U

L-L

: 417 VLN / 720 VLL

Only partially suitable for use in non-earthed

networks (see step 7).

L-L

600 VLL

UL U

L-N

/ U

L-L

: 347 VLN / 600 VLL

Two-phase two-conductor

systems, not earthed

Single-phase two-conductor

systems with earthed neutral

conductor

Separated single-phase three-

conductor systems with earthed

neutral conductor

Application areas for the

device:

• 2, 3 and 4 conductor

networks (TN and TT

networks).

• In residential and

industrial applications.

Only partially suitable

for use in non-earthed

networks (see step 7).

IEC U

L-N

480 VLN IEC U

L-N

/ U

L-L

: 400 VLN / 690 VLL

UL U

L-N

480 VLN UL U

L-N

/ U

L-L

: 347 VLN / 600 VLL

Connecting the supply voltage

Voltage measurement in the three-phase

four-conductor system (TN, TT networks).

Note: Ground your system!

Voltage measurement in the three-phase three-

conductor system (IT network).

The device is only suitable for use in IT networks

to a limited extent, as the measured voltage

relative to the housing potential is measured and

the input impedance of the device creates residual

current against the earth. The residual current can

trigger insulation monitoring in IT networks.

Connection variants with voltage transformers

are suitable for IT networks without

restrictions!

Schematic diagram for voltage measurement Current measurement

The device

• is intended for connecting current

transformers with secondary currents

of ../1 A and ../5 A.

• does not measure DC.

• has current measurement inputs that can

be loaded with a maximum of 120 A for

1 second.

Fig. Connection

example for "Current

measurement via

current transformers".

The current direction can be corrected via

the serial interfaces or on the device for each

phase. If incorrectly connected, a subsequent

re-connection of the current transformer is not

required.

Conﬁ guration

After the power returns, the device displays the

ﬁ rst measured value indication "Home".

• Press button 1 "ESC" to access the "Main

menu”:

• Use buttons 3 and 4 to select the menu entry

to be adjusted in the “Main menu” menu.

• Conﬁ rm the selected menu entry by pressing

button 6 "Enter"!

Press button 1 "ESC" to change back to the

higher menu level.

The "Communication" menu entry takes you to

the following window:

Your device has 1 Ethernet interface and 1

RS485 interface (ﬁ eld bus) for communication,

which can be adjusted in the "Communication"

window.



NOTE!

Detailed information on all menu entries and their settings can be found in the operation manual.



NOTE!

As an alternative to the fuse and circuit

breaker, you can use a line safety switch.

CAUTION!

Damage to property due to not

observing the connection conditions or

impermissible overvoltages

Your device can be damaged or destroyed by a failure to

comply with the connection conditions or by exceeding the

permissible voltage range.

Before connecting the device to the supply voltage,

check:

• The ground wire connection must be connected with

the system earthing!

• The voltage and frequency must meet the

speciﬁ cations on the rating plate! Adhere to the

threshold values as described in the operation

manual!

• In building installations, the supply voltage must be

protected with a UL/IEC approved circuit breaker /

a fuse!

• The circuit breaker

- must be easily accessible for the user and be

installed close to the device.

- must be labelled for the relevant device.

• Do not connect the supply voltage to the voltage

transformers.

• Provide a fuse for the neutral conductor if the

source's neutral conductor connection is not earthed.

Connection variants for baseline measurement inputs 1-3 (voltage and current)

Measurement in a three-phase 4-conductor network

with asymmetric loading.

L1 L2 L3 N

4w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 3m

1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2u

1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

The device requires the mains frequency

(range from 15 Hz to 440 Hz) to measure and

calculate measured values.

It is not necessary to conﬁ gure connection

schematics for measurement inputs V4 and I4.

Measurement in a three-phase 4-conductor network

with symmetric loading.

1 L2 L3 N

4w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 3m

1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

4w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2u

1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

Measurement via 3 voltage transformers in a three-phase

4-conductor network with asymmetric loading.

1 L2 L3 N

4w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

4w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2u

1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

Measurement via 2 voltage transformers in a three-phase

4-conductor network with asymmetric loading.

1 L2 L3 N

4w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 3m

1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

4w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

Measurement via 2 current transformers in a three-phase

3-conductor network with symmetric loading.

1 L2 L3 N

4w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 3m

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

4w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2u

1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

Measurement in a three-phase 4-conductor network

with asymmetric loading.

1 L2 L3 N

4w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 3m

1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

4w 2u

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

4w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

Measurement in a three-phase 3-conductor network

with asymmetric loading.

1 L2 L3 N

2w 1m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

3w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2m

1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2u

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

2w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

Measurement in a three-phase 3-conductor network

with asymmetric loading.

1 L2 L3 N

2w 1m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2m

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

3w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2u

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

2w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

Measurement in a three-phase 3-conductor network

with asymmetric loading.

1 L2 L3 N

2w 1m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

3w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2m

1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2u

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

2w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

Measurement in a three-phase 3-conductor network

with asymmetric loading.

1 L2 L3 N

2w 1m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2m

1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

3w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

2w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

Measurement in a three-phase 3-conductor network

with asymmetric loading.

1 L2 L3 N

2w 1m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

3w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2m

1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2u

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

2w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

Measurement of one phase in a three-phase 4-conductor network.

L1 L2 L3 N

2w 1m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2m

1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2u

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

2w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

Measurement in a three-phase 3-conductor network

with asymmetric loading.

1 L2 L3 N

2w 1m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

3w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2u

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

2w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

Measurement in a single-phase 3-conductor network.

I3 and U3 are not calculated and set to zero.

1 L2 L3 N

2w 1m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2m

1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

3w 2u

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

2w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2



NOTE!

Further information on

• supporting measurements via inputs

V4 (L4) and I4, and

• current data and current transformer

data

is provided in the operation manual.

The device has 3 types of address allocation for the

Ethernet interface (TCP/IP) in DHCP mode:

1. OFF (ﬁ xed IP address)

The user selects the IP address, network mask

and gateway on the device. Use this mode for

straightforward networks without DHCP servers.

2. BOOTP

Automatically integrates your device into an

existing network. BOOTP is an older protocol and

has a smaller scope of functions than DHCP.

3. DHCP

When started, the device automatically receives

the IP address, the network mask and the gateway

from the DHCP server.

Standard setting for the device is DHCP!

Communication via Ethernet interface (TCP/IP)

WARNING!

Risk of injury due to electric

voltage!

Severe bodily injuries or death can occur due

to:

• touching bare or stripped wires that are

live,

• current measurement inputs that are

dangerous to touch on the device and on

the current transformers.

De-energise your device before starting

work! Check that it is de-energised.

Earth the system. To do this, use the earth

connection points with the earthing symbol.

Also earth the secondary windings on the

current transformer and all metal parts on

the transformer that are able to be touched.



RECOMMENDATION!

For a PE/N measurement, connect the

protective earth (PE) to measurement

input V4. Do not use a green and yellow

wire for this as the conductor does not

have any protective function!

The voltage measurement inputs are designed for

measurements in low voltage networks, in which the

following rated voltages occur:

• Per IEC - 417 V phase to earth and 720 V phase

to phase in the 4-conductor system.

• Per UL - 347 V phase to earth and 600 V phase to

phase in the 4-conductor system.

• 600 V phase to phase in the 3-conductor system.

The measurement and surge voltages meet

overvoltage category 600 V CATIII.

The device is a class A power quality analyser

that

• measures and calculates electrical variables

such as voltage, current, power, energy,

harmonics, etc. in building installations,

on distribution units, circuit breakers and

busbar trunking systems.

• measures and monitors residual currents

(RCM) and currents at the central

grounding point (CGP). The residual current

monitoring is carried out via an external

residual current transformer (30 mA rated

current) on the current measurement inputs

I5 and I6.

• displays measurement results and transmits

them via interfaces (Ethernet, Modbus,

Proﬁ bus).

CAUTION!

Damage to property due to

not observing the installation

instructions

Failing to observe the installation instructions

can damage or destroy your device.

Ensure that there is adequate air circulation

in your installation environment; if the

ambient temperatures are high, ensure there

is adequate cooling if required.



NOTE!

Detailed information on the device

functions and data can be found in the

operation manual.

Circuit breakerFuse

L1 N PEL3L2

Protective

conductor

Ground wire

connection

The supply voltage level for your device is

speciﬁ ed on the rating plate.

After connecting the supply voltage, the ﬁ rst

measured value indication "Home" appears

on the display. If no indication appears, check

whether the supply voltage is within the rated

voltage range.

WARNING!

Risk of injury due to electric

voltage!

Severe bodily injuries or death can occur due to

• touching bare or stripped wires that are live.

• device inputs that are dangerous to touch.

De-energise your device before starting

work! Check that it is de-energised.

L1 N PEL3L2

Ethernet connection

Patch cable

Recommendation:

Use at least CAT5

cables!

L2 L3N L1

Load

Residual current monitoring (RCM) via I5 and I6

"Residual current monitoring

via current transformer"

connection variant

Suitable residual current transformers with

a rated current of 30 mA are connected to

terminals 4 and 5 (I5) and terminals 6 and 7

(I6).

The device measures residual currents in

accordance with IEC/TR 60755 (2008-01),

Type A



NOTE!

• The transformation ratios for

the residual current transformer

inputs can be conﬁ gured using the

“ecoExplorer go” software.

• The "Energy Analyser 750 with

residual current monitoring

via measurement inputs I5/I6"

connection variant and further

information are provided in the

operation manual.

• It is not necessary to conﬁ gure

a connection schematic for

measurement inputs I5 and I6.

The device is suitable for use as a residual

current monitoring device (RCM) to monitor

• AC

• DC and

• pulsing DC.

L1 N PEL3L2

Fig. "Voltage measurement"

connection example.

Circuit

breaker

Fuse

(UL/IEC listed)

Deutsche Version:

siehe Vorderseite

Assembly

The device is operated via 6 function keys for

• selecting measured value indications.

• navigation within the menus.

• editing device settings.

Key Function

• Back to home screen

• Exits selection menu

• Select digit (to the left)

• Selects main values (U, I, P ...)

• Changes (number -1)

• By-values (select)

• Selects menu item

• Changes (number +1)

• By-values (select)

• Selects menu item

• Select digit (to the right)

• Selects main values (U, I, P ...)

• Opens selection menu

• Conﬁ rm selection

Operation and button functions

Fig. Device display -

"Home" measured value indication



NOTE! Current and voltage transformer

ratios.

The current and voltage transformer ratios can

be conveniently conﬁ gured via

• the Conﬁ guration > Measurement >

Measurement transformer > MAIN

measurement transformer menu.

• the “ecoExplorer go” software.

More details on current transformers and

voltage transformer ratios and their adjustment

can be found in the operation manual.



NOTE!

For further information on operating,

displays and button functions on your

device, see the operation manual.

Display title

Measured

values

Labelling of the

function keys

Function keys

Technical data

General

Net weight

(with attached connectors)

approx. 1080 g

Device dimensions

l = 144 mm,

b = 144 mm,

h = 75 mm

Battery

Typ Li-Mn CR2450, 3 V

(approval i.a.w. UL 1642)

Clock

(in temperature range

-40°C to 85°C)

+-5ppm (corresponding to

approx. 3 minutes p.a.)

Transport and storage

The following information applies to devices which are trans-

ported or stored in the original packaging.

Free fall 1 m

Temperature -25° C to +70° C

Ambient conditions during operation

The device

• weather-protected and stationary use.

• connected to the protective conductor connection.

• corresponds to protection class I in acc. with IEC 60536

(VDE 0106, Part 1).

Working temperature range -10° C .. +55° C

Relative humidity

5 to 95% at 25°C

without condensation

Operating altitude 0 to 2000 m above sea level

Pollution degree 2

Einbaulage vertical

Lüftung no forced ventilation required.

Protection against ingress of

solid foreign bodies and water

- Front side

- Rear side

IP40 in acc. with EN60529

IP20 in acc. with EN60529

Supply voltage

Protection of the

supply voltage (fuse)

6 A, Char B

(approved i.a.w. UL/IEC)

Installations of

overvoltage category

300 V CAT III

Nominal range

Option 230 V:

AC 95 V - 240 V (50/60 Hz) or

DC 80 V - 300 V

Option 24 V:

AC 48 V - 110 V (50/60 Hz) or

DC 24 V - 150 V

Operating range +-10% of nominal range

Power consumption

Option 230 V: max. 14 VA / 7 W

Option 24 V: max. 13 VA / 9 W

Voltage measurement

Three-phase 4-conductor

systems with rated voltages

(L-N/L-L) up to

IEC: max. 417 V/720 V

UL: max. 347 V/600 V

Three-phase 3-conductor

systems with rated voltages

(L-L) up to

max. 600 V (+10%)

Overvoltage category 600 V CAT III

Rated surge voltage 6 kV

Protection of

voltage measurement

1 - 10 A

(With IEC / UL approval)

Measurement range L-N

0 .. 600 Vrms

Measurement range L-L

0 .. 1000 Vrms

Resolution 0.01 V

Crest factor 1.6 (

related to

600 Vrms)

Impedance 4 MΩ / phase

Power consumption ca. 0.1 VA

Sampling rate 25.6 kHz / phase

Transients 39 µs

Frequency range of

the fundamental oscillation

- resolution

15 Hz .. 440 Hz

0.001 Hz

1) The device can only determine measured values, if at least

a voltage L-N greater than 10Veff or a voltage L-L of greater

than 18Veff is present at one voltage measurement input.

2) Udin = arranged input voltage according to

DIN EN 61000-4-30

Current measurement

Rated current 5 A

Metering range 0.001 to 7 Arms

Measurement range exceeded

(overload)

From 7 Arms

Crest factor 1.41

Resolution 0.1 mA

Overvoltage category

Option 230 V: 300 V CAT III

Option 24 V: 300 V CAT II

Measurement surge voltage 4 kV

Power consumption approx. 0.2 VA (Ri=5 mΩ)

Overload for 1 sec. 120 A (sinusoidal)

Sampling rate 25.6 kHz / phase

Residual current monitoring I5 / I6 (RCM)

Rated current 30 mArms

Metering range 0 to 40 mArms

Triggering current 100 µA

Resolution 1 µA

Crest factor 1.414 (related to 40mA)

Burden 4 Ohm

Overload for 1 sec. 5 A

Sustained overload 1 A

Overload for 20 ms 50 A

Maximum external burden

300 Ohm

(for cable break detection)

Digital inputs

2 digital inputs with a joint earth.

Maximum counter frequency 20 Hz

Response time (Jasic program) 200 ms

Input signal present

18 V to 28 V DC (typical 4 mA)

(SELV or PELV supply)

Input signal not present

0 to 5 V DC,

current less than 0.5 mA

Digital outputs

2 digital outputs with a joint earth;

semiconductor relay, not short-circuit proof.

Supply voltage

20 - 30 V DC

(SELV or PELV supply)

Switching voltage max. 60 V DC

Switching current max. 50 mAeff AC/DC

Response time (Jasic program) 200 ms

Pulse output (energy pulse) max. 20 Hz

Temperature measurement input

3-wire measurement.

Update time 1 second

Connectable sensors PT100, PT1000, KTY83, KTY84

Total burden (sensor + cable) max. 4 kOhm

Cable length (Residual current monitoring, digital

inputs and outputs, temperature measurement input)

Up to 30 m Unshielded

More than 30 m Shielded

RS485 interface

3-wire connection with A, B, GND

Protocol

Modbus RTU/slave,

Modbus RTU/master,

Modbus RTU/Gateway

Transmission rate

9.6 kbps, 19.2 kbps,

38.4 kbps, 57.6 kbps,

115.2 kbps, 921.6 kbps

Termination resistor Can be activated by micro switch

Ethernet interface

Connection RJ45

Function

Modbus Gateway,

Embedded Webserver (HTTP)

Protocols

CP/IP, EMAIL (SMTP),

DHCP-Client (BootP),

Modbus/TCP,

Modbus RTU over Ethernet,

FTP, ICMP (Ping), NTP, TFTP,

BACnet (Option), SNMP

Proﬁ bus interface

Connection SUB D 9-pole

Protocol Proﬁ bus DP/V0 as per EN 50170

Übertragungsrate 9.6 kBaud to 12 MBaud

Potential separation and electrical safety for the

interfaces

The interfaces (RS485, Proﬁ bus, Ethernet) have

• a double insulation to the inputs of the supply voltage, voltage

and current measurement.

• a functional insulation against each other, to the measuring

inputs RCM and temperature and to the digital I/Os.

The interfaces of the connected devices requires a double or

reinforced insulation against the mains voltages (acc. to

IEC 61010-1: 2010).

Terminal connection capacity (supply voltage)

Connectable conductors.

Only one conductor can be connected per terminal!

Single core, multi-core,

ﬁ ne-stranded

0.2 - 2.5 mm

, AWG 24 - 12

Terminal pins, core end sheath 0.25 - 2.5 mm

Tightening torque 0.5 - 0.6 Nm

Stripping length 7 mm

Terminal connection capacity

(voltage and current measurement)

Connectable conductors.

Only one conductor can be connected per terminal!

Single core, multi-core,

ﬁ ne-stranded

0.2 - 2.5 mm

, AWG 24-12

Terminal pins, core end sheath 0.25 - 2.5 mm

Tightening torque 0.5 - 0.6 Nm

Stripping length 7 mm

Terminal connection capacity

(temperature measurement input)

Connectable conductors.

Only one conductor can be connected per terminal!

Single core, multi-core,

ﬁ ne-stranded

0.08 - 1.5 mm

Terminal pins, core end sheath 1 mm

Potential separation and electrical safety of the

temperature measurement input

The temperature measuring input has

• a double insulation to the inputs of the supply voltage, voltage

and current measurement.

• no insulation for RCM measuring input.

• a functional insulation of the interfaces Ethernet, Proﬁ bus,

RS485 and digital I/Os.

An external temperature sensor requires a double insulation to

plant parts with dangerous contact voltage (acc. to

IEC 61010-1: 2010).



NOTE!

Further technical data can be found in

the operation manual.

Terminal connection capacity

(residual current monitoring (RCM))

Connectable conductors.

Only one conductor can be connected per terminal!

Rigid/ﬂ exible 0.14 - 1.5 mm

, AWG 28-16

Flexible with core end sheath

with plastic sleeve

0.2 - 1.5 mm

Flexible with core end sheath

without plastic sleeve

0.2 - 1.5 mm

Tightening torque 0.2 - 0.25 Nm

Stripping length 7 mm

Terminal connection capacity

(digital inputs and outputs (I/Os))

Rigid/ﬂ exible 0.14 - 1.5 mm

, AWG 28-16

Flexible with core end sheath

with plastic sleeve

0.25 - 0.5 mm

Flexible with core end sheath

without plastic sleeve

0.25 - 1.5 mm

Tightening torque 0.22 - 0.25 Nm

Stripping length 7 mm

Potential separation and electrical safety

of the RCM measurement inputs

The RCM-measurement inputs have

• a double insulation to the inputs of the supply voltage, voltage

and current measurement.

• no insulation for temperature measurement input.

• a functional insulation of the interfaces Ethernet, Proﬁ bus,

RS485 and digital I/Os.

The residual current transformer connected and the lines to be

measured must each have at least one additional or a basic

insulation per IEC61010-1:2010 for the mains voltage present.

Potential separation and electrical safety of the

digital inputs and outputs (I/Os)

The digital inputs and outputs have

• a double insulation to the inputs of the supply voltage, voltage

and current measurement.

• a functional insulation against each other, to the interfaces

Ethernet, Proﬁ bus, RS485 and temperature measurement

input.

The external auxiliary voltage to be connected must be

compliant with SELV or PELV.

Procedure in the event of faults

Possible fault Cause Remedy

No display External fuse for the power supply voltage has tripped. Replace fuse.

No current display

Measured voltage is not connected. Connect the measured voltage.

Measurement current is not connected. Connect measurement current.

Current displayed is too large

or too small.

Current measurement in the wrong phase. Check connection and correct if necessary.

Current transformer factor is incorrectly

programmed.

Read out and program the CT ratio at the current

transformer.

The current peak value at the measurement input

was exceeded by harmonic components.

Install current transformer with a larger CT ratio.

The current at the measurement input fell short of.

Install current transformer with a smaller current

transformer ratio.

Voltage displayed is too large

or too small.

Measurement in the wrong phase. Check connection and correct if necessary.

Voltage transformer incorrectly programmed.

Read out and program the voltage transformer ratio

at the voltage transformer.

Voltage displayed is

too small.

Measurement range exceeded. Use voltage transformers.

The peak voltage value at the measurement input

has been exceeded by the harmonics.

Please note!

Ensure the measurement inputs are not overloaded.

Phase shift ind/cap.

A current path is assigned to the wrong voltage

circuit.

Check connection and correct if necessary.

Effective power,

consumption/supply

reversed.

At least one current transformer connection is mixed

up/reversed.

Check connection and correct if necessary.

A current path is assigned to the wrong voltage

circuit.

Check connection and correct if necessary.

Possible fault Cause Remedy

Effective power too large or

too small.

The programmed CT ratio is incorrect.

Read out and program the current transformer trans-

formation ratio at the current transformer.

The current path is assigned to the wrong voltage

circuit.

Check connection and correct if necessary.

The programmed voltage transformer ratio is

incorrect.

Read out and program the voltage transformer trans-

formation ratio at the voltage transformer.

An output is not responding.

The output was incorrectly programmed. Check programming and correct if necessary.

The output was incorrectly connected. Check and correct connection if necessary.

Measurement range

exceeded display (overload).

Voltage and current measurement input outside

the measurement range (See section Measurement

range exceeded).

Check and correct connection if necessary.

Use suitable voltage or current transformer.

Read voltage / current transformer ratio at the trans-

former and program.

No connection with

the device.

RS485

• Device address is incorrect.

• Different bus speeds (Baud rate).

• Wrong protocol.

• Termination missing.

• Adjust the device address.

• Adjust speed (baud rate).

• Select the correct protocol.

• Terminate bus with termination resistor.

Ethernet

• IP Device address is incorrect.

• Incorrect addressing mode.

• Adjust IP device address.

• Adjust the IP address assignment mode.

Device still does not work

despite the above measures.

Device defective.

Send device and error description for veriﬁ cation to

the manufacturer.



NOTES!

• Find out the Ethernet network settings for your

device from your network administrator.

• The description of additional communication

interfaces can be found in the operation man-

ual for your device.

• For more information about connection

and communication of your device with the

software, see the quick guide of software

„ecoExplorer go“.

Fig. "Main menu"

Fig. "Communication" window

www.weidmueller.com

Weidmüller Interface GmbH & Co. KG

Klingenbergstraße 16

D-32758 Detmold

+49 5231 14-0

+49 5231 14-292083

info@weidmueller.de

Fig. Energy Analyser 750-230

Power Quality Analyser

Energy Analyser 750-24

Energy Analyser 750-230

Installation manual

Supplement to the operation manual



Installation



Device settings

http://wmqr.eu/253416

http://wmqr.eu/253413

Disclaimer

The observance of the information products for

the devices is a prerequisite for safe operation

and to achieve the stipulated performance

characteristics and product characteristics.

Weidmüller Interface GmbH & Co. KG accepts

no liability for injuries to personnel, property

damage or ﬁ nancial losses arising due to a

failure to comply with the information products.

Ensure that your information products are

accessible and legible.

Further documentation is available on our

website at www.weidmueller.de.

editing, distribution and any form of

exploitation, also as excerpts, is prohibited.

Subject to technical amendments

• Make sure that your device agrees with the

installation manual.

• Read and understand ﬁ rst product-related

documents.

• Keep product supporting documentation

throughout the life available and, where approp-

riate, to pass on to subsequent users.

• Please inform yourself about device revisions

and the associated adjustments to the product-

related documentation on www.weidmueller.de.

Disposal

Observe the national regulations! If necessary,

dispose of individual parts according to their

properties and existing country-speciﬁ c

regulations, e.g. as:

• Electronic waste

• Plastics

• Metals

or commission a certiﬁ ed disposal company with

scrapping.

Relevant laws, applied standards and directives

For information on the laws, standards and

directives that Weidmüller Interface GmbH & Co.

KG applied for the device, see the declaration of

conformity.

Safety information

The Installation manual is not a complete

directory of all safety measures required to

operate the device.

Special operating conditions may require further

measures. The Installation manual contains

instructions that must be observed to ensure

your personal safety and to prevent damage to

property.

Symbols used:

This symbol is an addition to the

safety instructions and indicates

an electrical hazard.

This symbol is an addition to the

safety instructions and indicates

a potential hazard.



This symbol with the word NOTE!

describes:

• Procedures that do not pose

any risks of injures.

• Important information,

procedures or handling steps.

Safety information is highlighted by a warning

triangle and is indicated as follows depending

on the degree of danger:

DANGER!

Indicates an imminent danger that

causes severe or fatal injuries.

WARNING!

Indicates a potentially hazardous

situation that can cause severe

injuries or death.

CAUTION!

Indicates a potentially hazardous

situation that can cause minor

injuries or damage to property.

Safety measures

When operating electrical devices, certain parts

of these devices are invariably subjected to

hazardous voltage. Therefore, severe bodily

injuries or damage to property can occur if they

are not handled properly:

• Before connecting connections, ground

the device at the protective conductor

connection if present.

• Hazardous voltages may be present in all

switching parts that are connected to the

power supply.

• Hazardous voltages may also be present

in the device even after disconnecting the

supply voltage (capacitor storage).

• Do not operate equipment with current

transformer circuits while open.

• Do not exceed the threshold values speciﬁ ed

in the operation manual and on the rating

plate. Also adhere to this when inspecting and

commissioning.

• Observe the safety and warning instructions in

the documents that belong to the device!

Qualiﬁ ed staff

The device must only be installed, put into opera-

tion and maintained by qualiﬁ ed electricians who

are familiar with national and international laws,

provisions and standards.

Proper use

The device is

• intended for installation in switch cabinets

and small installation distributors. It can be

installed in any mounting position (please

observe step 3 "Assembly").

• not intended for installation in vehicles!

The use of the device in mobile equipment

is considered to be non-standard

environmental conditions and is therefore

only permitted after separate agreement.

• not intended for installation in environments

with hazardous oils, acids, gases, vapours,

dusts, radiation, etc.

They should be installed in an appropriate

enclosure (such as an electrical cabinet or

distributor box) which provides a sufﬁ cient

level of protection so that live current-carry

components cannot be touched and so that

dust and water cannot penetrate the unit.

The safety of the device must not be impaired

by its installation.

The prerequisites of faultless, safe operation

of this device are proper transport and proper

storage, set-up, installation, operation and

maintenance.

All signals connected with the device’s SELV

circuit must also conform with the SELV

provisions.

The DHCP server assigns IP addresses to the device and the PC

automatically.

Energy Analyser

750

Energy Analyser

750

Energy Analyser

750

Fig. Schematic diagram, device in an IT network without N.

600V 50/60Hz

AC/DC

Auxiliary

supply

Voltage measurement

V3V2

Earthing of

the system

Impedance

Vref

Energy Analyser 750

Fig. Schematic diagram, device in a TN network.

347V/600V 50/60Hz

240V

50/60Hz

Earthing

of the

system

AC/DC

Voltage measurement

V1 V3V2 Vref

Energy Analyser 750

Auxiliary

supply

Fig. Connection example

supply voltage 230 V.

2576900000/00/01.18